Overview
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Simply deleting files doesn't prevent hackers from recovering those files. In many instances, if you want a file to be unrecoverable, then that file needs to be completely erased. |
Why should you securely delete/shred information?
When files are deleted using the common "delete" operation, information is only removed from files, so they can't be found by the operating system. File recovery software can be used to recover this information by taking advantage of shortcomings in the standard delete operation. A program capable of overwriting the file data with random binary must be used in order to remove files permanently from your system. This process is often called shredding.
What should be shredded?
Any information Files that you need to be completely deleted beyond recovery should be shredded. Before shredding a file, please ensure that you are not violating any State Records Laws or Sunshine Laws. Any information that needs to be maintained for Public Record should NOT be shredded (e.g., a student's proof of residency, student records, payment receipts, etc.). However, any files that may contain confidential information that are not public record should be shredded if they are no longer needed (e.g., an Excel document used to move Social Security Numbers from one location to another that will not be used again).
For more information, please see the University Policy FIN 3.02-2.14 and the Records Management Overview.
How to shred files
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| title | Shredding Files on Windows |
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UWF employees should use Spirion to shred files.
For any other users,
- Windows doesn't come with an option to shred files. Windows users might consider downloading BleachBit. This program is a reliable, free and open-source tool that can be used to shred
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- files. It is available for free under
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- version 3 of the GNU General Public License. Please know that users download this program at their own risk.
- Apple computers come with an option to shred files. See the link below for additional details
In File Shredder you can choose between 5 different shredding algorithms, each slightly stronger than the previous. Additionally, File Shredder has an integrated Disk Wiper which uses a shredding algorithm to wipe unused disk space.
Shredding Files using File Shredder
- Install File Shredder from the link above.
- Open File Shredder.
- Select the files you wish to shred by clicking "Add File(s)" or "Add Folder".
- Once the files have been added, click "Shred Files Now..."
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The ability to securely delete files is built into the OS on Macs. To securely delete a file, first add :
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FAQs
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You may also adjust your settings so that files are removed securely each time you empty the trash. To adjust this setting:
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